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USPTO Patent Rankings Data through Dec 31, 2025
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Robert J. Hofmann — 3 Patents

ATAT&T: 2 patents #7,295 of 18,772Top 40%
Panasonic: 1 patents #13,316 of 21,108Top 65%
Everett, WA: #303 of 1,109 inventorsTop 30%
Washington: #28,186 of 76,902 inventorsTop 40%
Overall (All Time): #1,328,092 of 4,157,543Top 35%
3 Patents All Time
Robert J. Hofmann has been granted 3 US patents while listed as an inventor at AT&T. The first was granted in 1999 and the most recent in May 2001. Robert J. Hofmann ranks #1,328,092 of 4,157,543 US inventors in our database (top 31.9%). Patent records list Robert J. Hofmann in Everett, WA, US.

Patents per Year

Patents granted per year, 1999 to 2001Bar chart with a peak of 1 patents in 1999.peak 11999: 1 patents19992000: 1 patents20002001: 1 patents2001

Issued Patents All Time

Showing 1–3 of 3 patents

Patent #TitleCo-InventorsDate
6233225 Line coding mismatch detection technique David J. Antonello, David L. Carter, Nino Girardi, Karl T. Koppany, Michael Lutz +1 more 2001-05-15
6154523 Method and system for linking a toll switch Douglas Jones, Karl T. Koppany, Michael Lutz 2000-11-28
5857869 Spring latch for use with cable connectors Stephen Spencer Parcel, Timmy Lane Hallmark, Allen Stewart 1999-01-12

Frequent Collaborators

Michael Lutz2 shared
Karl T. Koppany2 shared
David J. Antonello1 shared
Timmy Lane Hallmark1 shared
Allen Stewart1 shared
David L. Carter1 shared

Nearby-Ranked Inventors

Daniel Silion3
Hangfeng Li3
Mark Vander Wal3
Chad M. Goltzman3
Sathish Kumar Thanganathan3
Debbie Maloyd3
Ethan Alexander Garrett3
Paul Sabatka3
Sergii Bomko3